GEOTEK ENGINEERING & TESTING SERVICES, INC. 909 East 50 th Street North Sioux Falls, South Dakota Fax

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1 GEOTEK EGIEERIG & TESTIG SERVICES, IC. 909 East 0 th Street orth Sioux Falls, South Dakota Fax 0--0 South Dakota State University Facilities and Services Admistration 0, PO Box 0 Brookgs, South Dakota 00 ovember, 0 Attn: Les Olive Subj: Prelimary Geotechnical Exploration Proposed Residential Apartment Complex Medary Avenue & th Street Brookgs, South Dakota GeoTek #-B Introduction This correspondence presents our reportg of the prelimary geotechnical exploration program for the referenced project. Our work was performed accordance with our contractual agreement. Site Conditions & Description The project site is located northwest of the tersection of Medary Avenue and th Street on the campus of South Dakota State University Brookgs, South Dakota. The current site features clude lawn/landscapg, sidewalks, gravel surfacg and asphalt pavement. Several existg buildgs are also located at the site. Ground surface elevations at the test borg locations were determed by usg the top of the fire hydrant located approximately feet northwest of the northwest corner of the existg Agricultural Heritage Museum. An arbitrary elevation of 00.0 feet was used for the benchmark. Based on the benchmark datum, the surface elevations at the test borg locations varied from 9. feet at test borg to 0. feet at test borg. A site sketch is attached at the conclusion of this report showg the relative location of the test borgs. Field Data Eight () test borgs were performed at the project site on ovember, 0. The logs of the test holes are attached. The subsurface conditions encountered at the test borg locations consisted of

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4 GEOTEK EGIEERIG & TESTIG SERVICES, IC. 909 E. 0th Street orth Sioux Falls, SD Fax 0--0 GEOTECHICAL TEST BORIG LOG GEOTEK # -B BORIG O. ( of ) Prelimary Geotechnical Exploration, Proposed Residential Apartment Complex, Medary Avenue & th Street, Brookgs, SD DESCRIPTIO OF MATERIAL SURFACE ELEVATIO 0. ft, MOSTLY CLAY: with gravel, dark brown, moist, '' of asphalt and '' of gravel at the surface ORIGI O. TYPE WC D LL PL QU 9 ½ mottled brown and gray, moist, stiff to very stiff, (CL) 900 GEOTECHICAL TEST BORIG -B.GPJ GEOTEKEG.GDT // 9½ -- brown, moist, very stiff, (CL) :9 pm Bottom of borehole at feet. MEASUREMETS D CASIG 9. CAVE-I none START --." ID Hollow Stem Auger -- : pm

5 GEOTEK EGIEERIG & TESTIG SERVICES, IC. 909 E. 0th Street orth Sioux Falls, SD Fax 0--0 GEOTECHICAL TEST BORIG LOG GEOTEK # -B BORIG O. ( of ) Prelimary Geotechnical Exploration, Proposed Residential Apartment Complex, Medary Avenue & th Street, Brookgs, SD DESCRIPTIO OF MATERIAL SURFACE ELEVATIO 00. ft, MOSTLY CLAY: with gravel, dark brown, moist, '' of asphalt and '' of gravel at the surface ORIGI O. TYPE WC D LL PL QU ½ mottled brown and gray, moist, stiff to very stiff, (CL) GEOTECHICAL TEST BORIG -B.GPJ GEOTEKEG.GDT // -- : pm Bottom of borehole at feet. MEASUREMETS D CASIG 9. CAVE-I 9 none START --." ID Hollow Stem Auger -- : pm

6 GEOTEK EGIEERIG & TESTIG SERVICES, IC. 909 E. 0th Street orth Sioux Falls, SD Fax 0--0 GEOTECHICAL TEST BORIG LOG GEOTEK # -B BORIG O. ( of ) Prelimary Geotechnical Exploration, Proposed Residential Apartment Complex, Medary Avenue & th Street, Brookgs, SD DESCRIPTIO OF MATERIAL SURFACE ELEVATIO 00. ft, MOSTLY CLAY: with gravel, dark brown, moist, '' of asphalt and '' of gravel at the surface SADY LEA CLAY: a little gravel, mottled brown and gray, dry, stiff, (CL) ORIGI O. TYPE WC D LL PL QU ½ mottled brown and gray, moist, stiff to very stiff, (CL) 9 GEOTECHICAL TEST BORIG -B.GPJ GEOTEKEG.GDT // -- :9 pm Bottom of borehole at feet. MEASUREMETS D CASIG 9. CAVE-I 0 START --." ID Hollow Stem Auger -- 9:0 am

7 GEOTEK EGIEERIG & TESTIG SERVICES, IC. 909 E. 0th Street orth Sioux Falls, SD Fax 0--0 GEOTECHICAL TEST BORIG LOG GEOTEK # -B BORIG O. ( of ) Prelimary Geotechnical Exploration, Proposed Residential Apartment Complex, Medary Avenue & th Street, Brookgs, SD DESCRIPTIO OF MATERIAL SURFACE ELEVATIO LEA CLAY: black, dry 00. ft ORIGI O. TYPE WC D LL PL QU mottled brown and gray, dry, very stiff to hard, (CL) mottled brown and gray, moist, very stiff, (CL) 9 GEOTECHICAL TEST BORIG -B.GPJ GEOTEKEG.GDT // -- : pm Bottom of borehole at feet. MEASUREMETS D CASIG 9. CAVE-I none START --." ID Hollow Stem Auger -- :0 pm

8 GEOTEK EGIEERIG & TESTIG SERVICES, IC. 909 E. 0th Street orth Sioux Falls, SD Fax 0--0 GEOTECHICAL TEST BORIG LOG GEOTEK # -B BORIG O. ( of ) Prelimary Geotechnical Exploration, Proposed Residential Apartment Complex, Medary Avenue & th Street, Brookgs, SD DESCRIPTIO OF MATERIAL SURFACE ELEVATIO 9. ft, MOSTLY SAD: with gravel, medium graed, brown, moist ORIGI O. TYPE WC D LL PL QU, MOSTLY CLAY: with gravel, dark brown, moist 9 9 mottled brown and gray, moist, very stiff, (CL) brown, moist, very stiff, (CL) GEOTECHICAL TEST BORIG -B.GPJ GEOTEKEG.GDT // -- : am Bottom of borehole at feet. MEASUREMETS D CASIG 9. CAVE-I 9 none START --." ID Hollow Stem Auger -- : am

9 GEOTEK EGIEERIG & TESTIG SERVICES, IC. 909 E. 0th Street orth Sioux Falls, SD Fax 0--0 GEOTECHICAL TEST BORIG LOG GEOTEK # -B BORIG O. ( of ) Prelimary Geotechnical Exploration, Proposed Residential Apartment Complex, Medary Avenue & th Street, Brookgs, SD DESCRIPTIO OF MATERIAL SURFACE ELEVATIO 9. ft, MOSTLY SAD: a little clay, medium graed, dark brown, moist ORIGI O. TYPE WC D LL PL QU, COCRETE RUBBLE ½ mottled brown and gray, moist, stiff, (CL) ½ brown, moist, stiff, (CL) ½ mottled brown and gray, moist, stiff to very stiff, (CL) GEOTECHICAL TEST BORIG -B.GPJ GEOTEKEG.GDT // -- : pm Bottom of borehole at feet. MEASUREMETS D CASIG 9. CAVE-I 0 START --." ID Hollow Stem Auger -- 0:0 am

10 GEOTEK EGIEERIG & TESTIG SERVICES, IC. 909 E. 0th Street orth Sioux Falls, SD Fax 0--0 GEOTECHICAL TEST BORIG LOG GEOTEK # -B BORIG O. ( of ) Prelimary Geotechnical Exploration, Proposed Residential Apartment Complex, Medary Avenue & th Street, Brookgs, SD DESCRIPTIO OF MATERIAL SURFACE ELEVATIO 9. ft, MOSTLY CLAY: with gravel, dark brown, moist, '' of asphalt and '' of gravel at the surface ORIGI O. TYPE WC D LL PL QU 9 0 9½ mottled brown and gray, moist, stiff, (CL) GEOTECHICAL TEST BORIG -B.GPJ GEOTEKEG.GDT // 9½ -- brownish gray, moist, stiff, (CL) :0 pm Bottom of borehole at feet. MEASUREMETS D CASIG 9. CAVE-I START --." ID Hollow Stem Auger -- :0 pm

11 GEOTEK EGIEERIG & TESTIG SERVICES, IC. 909 E. 0th Street orth Sioux Falls, SD Fax 0--0 GEOTECHICAL TEST BORIG LOG GEOTEK # -B BORIG O. ( of ) Prelimary Geotechnical Exploration, Proposed Residential Apartment Complex, Medary Avenue & th Street, Brookgs, SD DESCRIPTIO OF MATERIAL SURFACE ELEVATIO 99. ft, MIXTURE OF SAD AD COCRETE RUBBLE: with sand ORIGI O. TYPE WC D LL PL QU mottled brown and gray, moist, very stiff, (CL) ½ brownish gray, moist, stiff, (CL) GEOTECHICAL TEST BORIG -B.GPJ GEOTEKEG.GDT // -- :09 pm Bottom of borehole at feet. MEASUREMETS D CASIG 9. CAVE-I 9 none START --." ID Hollow Stem Auger -- : pm

12 SOIL CLASSIFICATIO CHART SYMBOLS MAJOR DIVISIOS GRAPH LETTER TYPICAL DESCRIPTIOS GRAVEL AD GRAVELLY SOILS CLEA GRAVELS (LITTLE OR O FIES) GW GP WELL-GRADED GRAVELS, GRAVEL - SAD MIXTURES, LITTLE OR O FIES POORLY-GRADED GRAVELS, GRAVEL - SAD MIXTURES, LITTLE OR O FIES COARSE GRAIED SOILS MORE THA 0% OF COARSE FRACTIO RETAIED O O. SIEVE GRAVELS WITH FIES (APPRECIABLE AMOUT OF FIES) GM GC SILTY GRAVELS, GRAVEL - SAD - SILT MIXTURES CLAYEY GRAVELS, GRAVEL - SAD - CLAY MIXTURES MORE THA 0% OF MATERIAL IS LARGER THA O. 00 SIEVE SIZE SAD AD SADY SOILS CLEA SADS (LITTLE OR O FIES) SW SP WELL-GRADED SADS, GRAVELLY SADS, LITTLE OR O FIES POORLY-GRADED SADS, GRAVELLY SAD, LITTLE OR O FIES MORE THA 0% OF COARSE FRACTIO PASSIG O O. SIEVE SADS WITH FIES (APPRECIABLE AMOUT OF FIES) SM SC SILTY SADS, SAD - SILT MIXTURES CLAYEY SADS, SAD - CLAY MIXTURES ML IORGAIC SILTS AD VERY FIE SADS, ROCK FLOUR, SILTY OR CLAYEY FIE SADS OR CLAYEY SILTS WITH SLIGHT PLASTICITY FIE GRAIED SOILS SILTS AD CLAYS LIQUID LIMIT LESS THA 0 CL IORGAIC CLAYS OF LOW TO MEDIUM PLASTICITY, GRAVELLY CLAYS, SADY CLAYS, SILTY CLAYS, LEA CLAYS OL ORGAIC SILTS AD ORGAIC SILTY CLAYS OF LOW PLASTICITY MORE THA 0% OF MATERIAL IS SMALLER THA O. 00 SIEVE SIZE SILTS AD CLAYS LIQUID LIMIT GREATER THA 0 MH CH IORGAIC SILTS, MICACEOUS OR DIATOMACEOUS FIE SAD OR SILTY SOILS IORGAIC CLAYS OF HIGH PLASTICITY OH ORGAIC CLAYS OF MEDIUM TO HIGH PLASTICITY, ORGAIC SILTS HIGHLY ORGAIC SOILS PT PEAT, HUMUS, SWAMP SOILS WITH HIGH ORGAIC COTETS OTE: DUAL SYMBOLS ARE USED TO IDICATE BORDERLIE SOIL CLASSIFICATIOS

13 BORIG LOG SYMBOLS AD DESCRIPTIVE TERMIOLOGY SYMBOLS FOR DRILLIG AD SAMPLIG Symbol Bag CS DM FA HA LS MR SR SH SS Defition Bag sample Contuous split-spoon samplg Drillg mud Flight auger; number dicates outside diameter ches Hand auger; number dicates outside diameter ches Hollow stem auger; number dicates side diameter ches Ler sample; number dicates outside diameter of ler sample Standard penetration resistance (-value) blows per foot o water level measurement recorded, primarily due to presence of drillg fluid o sample retrieved; classification is based on action of drillg equipment and/or material noted drillg fluid or on samplg bit Shelby tube sample; -ch outside diameter Standard penetration test (-value) usg standard split-spoon sampler Split-spoon sample; -ch outside diameter unless otherwise noted Water level directly measured borg Water level symbol SYMBOLS FOR Symbol WC D LL PL QU Defition Water content, percent of dry weight; ASTM:D Dry density, pounds per cubic foot Liquid limit; ASTM:D Plastic limit; ASTM:D Unconfed compressive strength, pounds per square foot; ASTM:D DESITY/COSISTECY TERMIOLOGY Density Consistency Term -Value Term Very Loose 0- Soft Loose - Firm Medium Dense 9- Stiff Dense -0 Very Stiff Very Dense Over 0 Hard Term Dry Frozen Moist Waterbearg Wet Lamation Layer Lens DESCRIPTIVE TERMIOLOGY Defition Absence of moisture, powdery Frozen soil Damp, below saturation Pervious soil below water Saturated, above liquid limit Up to ½ thick stratum ½ to thick stratum ½ to discontuous stratum PARTICLE SIZES Term Particle Size Boulder Over Cobble Gravel # Coarse Sand #0 # Medium Sand #0 #0 Fe Sand #00 #0 Silt and Clay passes #00 sieve GRAVEL PERCETAGES Term Range A trace of gravel -% A little gravel -% With gravel -0% GeoTek Engeerg & Testg Services, Inc.